We are focused on executing what we can influence, which includes staying close to our customers, winning share and new business, proactively working to offset raw material or tariff-related inflation, controlling our costs and strengthening our balance sheet. The webcast can be viewed live at avient.com/investors, or by clicking on the webcast link here. Senior management believes this measure is useful to investors because it allows for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Petrem Elšíkem, notářem se sídlem v Litoměřicích, na místě samém v sídle PRK Partners s.r.o. advokátní kancelář, na adrese Jáchymova 26/2, Staré Město, 110 00 Praha 1, dle § 80a a násl. notářského řádu o ---------------------------------------------------------------------------------------------------------------------- r o z h o d n u t í valné hromady společnosti PolyOne ČR, s.r.o., identifikační číslo 26689537, sídlem Pobřežní 620/3, Karlín, 186 00 Praha 8, spisová značka C 87503 vedená u Městského soudu v Praze (dále též „Společnost“), o změně obsahu společenské smlouvy (dále též „Rozhodnutí“), konané dne 21.10.2021 v budově na adrese Jáchymova 26/2, Staré Město, 110 00 Praha 1. ------------------ I. 1. Před zahájením valné hromady učinili všichni společníci, oba zast. zmocněncem, každý samostatně, dle § 184 odst. 3 ZOK, toto prohlášení: „Prohlašuji, že souhlasím s konáním této valné hromady i bez splnění požadavků zákona a společenské smlouvy na její svolání.“ ------------------- Před přijetím Rozhodnutí dle článku III. učinil Předsedající ve smyslu § 80b písm. g) notářského řádu toto prohlášení: „Valná hromada je způsobilá přijímat Rozhodnutí.“ -------------- III. Valná hromada Společnosti svým usnesením přijala toto --------------------------------------- r o z h o d n u t í o změně obsahu společenské smlouvy: a)Společenská smlouva Společnosti se mění tak, že v článku prvním „Obchodní firma, založení, vznik a právní forma společnosti“ odst. 1. a 2. nově zní takto: ---------------------- 1.

James S T A T E OF O H I O C E R T I F I C A T E Ohio Secretary of State, Frank LaRose 4463782 It is hereby certified that the Secretary of State of Ohio has custody of the business records for and, that said business records show the filing and recording of: AVIENT CORPORATION United States of America State of Ohio Office of the Secretary of State Witness my hand and the seal of the Secretary of State at Columbus, Ohio this 23rd day of April, A.D. 2020. I have provided all the necessary information to complete the filing process with our office.

U KAS MANAC〔M〔N丁 SYSTEMS 0005 、端；薰；; HCSGS 13485 2016 Olin ：氨 城心〔找n心亡〔 ．．八 护、产、八 j丹月六户 八八月户 八月月‘、 ）如》 称资熨面蔚若三 「｛羹 StS55G S GSlfS5SG56SGSGSGSGSGSG5G5 f5 嚷i羹羹巍熊燕鬓；；奎忿 rage I Oil;；燕七 :终 sds 0Gs、 山5互 0s's""“ 刀之： J"‘、 ,slttiGsti.' Certified since 19 February 2009 GSCS6S&SSSGSG SGS GSGSGSGSGSCSf g r I 's r I! I SOS United Kingdom Ltd Rossmore Business Park Eflesmere Port cheshire CH65 3EN uK t +44 (0)151 350-6666 f +44 (01151 350-6600 wwwsgscom : Authorised by ‘亏～ '. aI5tiSOS . ) SGSGSGSGS GSGSCSGSG.

Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications. Processing conditions can cause material properties to shift from the values stated in the information. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner.

T I G H T B U F F E R I N G E L - F I L L E D L O O S E T U B E F O R A E R I A L C A B L E S GLOBAL CABLE MANUFACTURER • Operating temperature from -40°C to 70°C • High gel resistance • Low shrinkage • Stripability for easy installation • Good flame retardancy • Developed a formulation with good thermal behaviour and low shrinkage • Enabled a greater range of operating temperatures giving the customer the flexibility of using the same cable design in a range of different climates • Provided superior gel resistance increasing life time of the cable • Utilized simulation service to optimize customer tooling and extrusion output ECCOH™ 5806 Formulation KEY REQUIREMENTS WHY AVIENT?

PIPE & FITTINGS MANUFACTURER W A T E R / F L U I D D I S T R I B U T I O N • Suitable for PP-R and PP-RCT • Specific color targets for external and inner layers • Improved resistance to chlorine for the inner layer • Food contact approval for the inner layer • Batch-to-batch consistency • Matched color references in concentrates suitable for PP-R and PP-RCT • Developed custom colorant/antioxidant combination masterbatch with high resistance to chlorine and food contact approval for the inner layer • Ensured batch-to-batch consistency for sustained performance Color concentrates and color/antioxidant combination masterbatch KEY REQUIREMENTS WHY AVIENT?

I N D U S T R I A L E Q U I P M E N T M A N U FAC T U RE R H O U S I N G F O R C R A N E C O N T R O L • High impact performance, charpy notched > 60kJ/m2 • Part assembly: tight dimensional tolerances ±0.05mm • Critical weld lines are invisible on the final part • Red RAL 3020 as branding color • Color stability during injection • Offered a nylon (PA66) formulation with high impact resistance and dimensional stability • Supported injection trials with field technical services • Developed a ready-to-use solution in RAL 3020 with excellent color stability, helping to reduce scrap rate from >50% to 4% • Enabled timely production through fast new developments and samplings • Offered additional color options Bergamid Polyamide Formulations KEY REQUIREMENTS WHY AVIENT?

Home printer OEM HOME PRINTER OEM R E C Y C L E D H I P S I N J E C T I O N C O V E R O F P R I N T E R • Provide PCR-based colorants for a more sustainable solution • Meet both color and mechanical requirements in PCR materials • Offer user-friendly PCR + Colorants solution to address the batch variance problem of PCR in an economical way • Offered revolutionary supply model of PCR + Colorants, ensuring precise quality and color • Helped customers solve the batch variance problem of PCR in a digital way and shortened the color-matching time with PCR Color Prediction Service • Provided on-site technical support to customer Rejoin PCR Colorants KEY REQUIREMENTS WHY AVIENT?

Ai fini delle leggi anti-corruzione, i funzionari pubblici includono: • Funzionari e dipendenti di un dipartimento o ente pubblico (federale, statale o locale) • Qualsiasi persona che agisca in veste ufficiale per conto di qualsiasi governo, dipartimento o ente • I partiti politici, i funzionari di partiti politici e i candidati alle cariche pubbliche • Funzionari e dipendenti di imprese commerciali statali o controllate dallo Stato, comprese le entità parzialmente partecipate • I funzionari e i dipendenti di organizzazioni internazionali pubbliche, come le Nazioni Unite Riconoscere un funzionario pubblico può spesso essere facile, ma non sempre. Tutti i collaboratori, senza alcuna eccezione, sono tenuti a seguire queste regole e procedure. I collaboratori che violano questa Politica saranno soggetti ad azione disciplinare, compreso il licenziamento.